diff --git a/src/master/common.h b/src/master/common.h
index c1b7637d91..6f228a5f01 100644
--- a/src/master/common.h
+++ b/src/master/common.h
@@ -13,8 +13,7 @@ extern int global_master_dead_pipe_fd[2];
 extern struct service_list *services;
 extern bool startup_finished;
 
-void process_exec(const char *cmd, const char *extra_args[])
-	ATTR_NORETURN ATTR_NULL(2);
+void process_exec(const char *cmd) ATTR_NORETURN;
 
 int get_uidgid(const char *user, uid_t *uid_r, gid_t *gid_r,
 	       const char **error_r);
diff --git a/src/master/main.c b/src/master/main.c
index c2aaf4c2fb..39f98a7430 100644
--- a/src/master/main.c
+++ b/src/master/main.c
@@ -58,27 +58,13 @@ static const struct setting_parser_info *set_roots[] = {
 	NULL
 };
 
-void process_exec(const char *cmd, const char *extra_args[])
+void process_exec(const char *cmd)
 {
 	const char *executable, *p, **argv;
 
 	argv = t_strsplit(cmd, " ");
 	executable = argv[0];
 
-	if (extra_args != NULL) {
-		unsigned int count1, count2;
-		const char **new_argv;
-
-		/* @UNSAFE */
-		count1 = str_array_length(argv);
-		count2 = str_array_length(extra_args);
-		new_argv = t_new(const char *, count1 + count2 + 1);
-		memcpy(new_argv, argv, sizeof(const char *) * count1);
-		memcpy(new_argv + count1, extra_args,
-		       sizeof(const char *) * count2);
-		argv = new_argv;
-	}
-
 	/* hide the path, it's ugly */
 	p = strrchr(argv[0], '/');
 	if (p != NULL) argv[0] = p+1;
diff --git a/src/master/service-process.c b/src/master/service-process.c
index c70d9c10ef..3a1d026668 100644
--- a/src/master/service-process.c
+++ b/src/master/service-process.c
@@ -323,7 +323,7 @@ struct service_process *service_process_create(struct service *service)
 		service_reopen_inet_listeners(service);
 		service_dup_fds(service);
 		drop_privileges(service);
-		process_exec(service->executable, NULL);
+		process_exec(service->executable);
 	}
 	i_assert(hash_table_lookup(service_pids, POINTER_CAST(pid)) == NULL);